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russrimm
Microsoft
Microsoft

Patch null in a column

Hi all,

I'm seeing there is/was a bug preventing patching a null value.  It appears this is still the case?  

I'm trying to null out one column on the onchange of another column.  I've tried using UpdateIf and Patch unsuccessfully.  I just want it so that if something is entered into a row on column B, I need it to automatically empty out column A in the same row - either through the onchange of the cell in the gallery, or via the submit button after editing the cell.   Possible?

Thanks

1 ACCEPTED SOLUTION

Accepted Solutions
cwebb365
Power Participant
Power Participant

You’ll have to use a variable and use it as the value() in the text of estimated control. Then onselect of the actual use a set(). However it probably would just be easier to throw an If(!isEmpty(actual.text),value(estimate.text),value(actual.text)) in your patch for that column you are updating.

Of if it’s two separate database columns then use that same command but put 0 in place of the value(actual.text) spot.

View solution in original post

5 REPLIES 5
cwebb365
Power Participant
Power Participant

What is the data type? Can’t just set it to blank?

They're both values.  Basically I have a column with estimated expenses and another with actual expenses.  If someone finally spends the money, they will update the actual expense text input in the gallery and I want the estimated value to change to 0 or null so it doesnt mess my calculations up (i'm combining estimated and actual together for the "remaining budget" value and don't want a single line item to count against them for the sum of both estimated and actual.

Thx

cwebb365
Power Participant
Power Participant

You’ll have to use a variable and use it as the value() in the text of estimated control. Then onselect of the actual use a set(). However it probably would just be easier to throw an If(!isEmpty(actual.text),value(estimate.text),value(actual.text)) in your patch for that column you are updating.

Of if it’s two separate database columns then use that same command but put 0 in place of the value(actual.text) spot.

View solution in original post


@cwebb365 wrote:
You’ll have to use a variable and use it as the value() in the text of estimated control. Then onselect of the actual use a set(). However it probably would just be easier to throw an If(!isEmpty(actual.text),value(estimate.text),value(actual.text)) in your patch for that column you are updating.

Of if it’s two separate database columns then use that same command but put 0 in place of the value(actual.text) spot.

Thanks that's helpful.  This is what I ended up with in my Patch statement.  

Estimated:If(IsBlank(ActualDataCard.Text),Value(EstimatedExpDatacard.Text),Value("0"))

 

I only want it to empty out the "Estimated" value in the modified line item when that line item's "actual" amount is updated.  So I used IsBlank vs IsEmpty.  I tried just using Value("") instead of Value("0") but Value("") doesn't modify the currently set Estimated value at all.  It'd be cool if I find a way to null the value out so it doesn't show a 0 but it should suffice for my needs.

 

cwebb365
Power Participant
Power Participant

Try reset(control) that should blank it on screen. But not sure if it’ll write null to datasource in patch.

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